【正文】 40— 45 35— 40 使用次數(shù) 60 8 l570 34lO 相 對壽命 1 15 26 57 易損件磨損速度 {葉片 ) 10— l5 l l 2— 4 相對 價(jià)格 l ～ 2 2～ 2～ 2． 5 緣舍效果 差 中 優(yōu) 良 設(shè)計(jì)合理的 噴 丸器 （關(guān)鍵部件） 噴 丸器的工作原理就是硬材料丸粒通過漏斗進(jìn)入 高壓鼓風(fēng)管 ，通過定量控制器進(jìn)入高速傳動的葉輪中，在離心力的作用下，丸粒沿著曲線葉片運(yùn)動 迅速地拋出打擊在工件的表面上，起著清理或強(qiáng)化的作用。芯部部件主要包括葉輪、葉片、分配器、定量控制器、漏斗等；驅(qū)動裝置主要包括軸承、軸承座、主軸、皮帶輪、護(hù)罩等。 kW)； Q—— 噴 丸量，單位為 kg／ min； Ⅳ _ 耗用功率，單位為 kW。 （ 3）噴 丸速度 對于 噴 丸落砂清理設(shè)備而言，其 鋼 丸的 噴 射速度一般在 75 m／ min左右，而鑄件表面清理時(shí)．其 鋼 丸的 噴 射速度一般在 70 rn／ min左右。 R22Rl 式中 n —— 空壓機(jī) 葉輪轉(zhuǎn)速，單位為 r／ min； R1 —— 葉輪外徑，單位為 mm ； R2 —— 葉輪內(nèi)徑，單位為 mm 。 風(fēng)選分離器主要由螺旋輸送器、分離器殼體、分離級板、純凈丸料倉、混合物倉、回用物料倉、溢流倉等組成 螺旋給料器的給料量應(yīng)與 噴 丸量一致 。 n178。 c178。②具有較小的葉輪直徑和較低的主軸轉(zhuǎn)速，可獲得較高的彈丸拋射速度。 確定斗式提升機(jī)的容量和鋼丸提升系統(tǒng)的配置及布置結(jié)構(gòu)，并合理選定提升速度及皮帶強(qiáng)度和寬度等參數(shù) 設(shè)計(jì)自動除銹作業(yè)線 擬采取設(shè)計(jì)方法和技術(shù)支持 （設(shè)計(jì)方案、技術(shù) 要求、實(shí)驗(yàn)方法和步驟、可能遇到的問題和解決辦法等） 設(shè)計(jì)方案： 本新型拋丸除銹機(jī) 系統(tǒng)組成 ： 主要由輸送系統(tǒng)、 噴丸系統(tǒng)及電氣系統(tǒng)組成。 ～ 90176。 100mm，精度：177。 100mm，精度：177。 100mm，精度：177。 利用 inter 網(wǎng)絡(luò)資源查找相關(guān)資料 在圖書館查到的相關(guān)文獻(xiàn)。Sand–spraying。Roughening, Pipeline Along with the development of western China, westeast gas transmission project has bee the frontier. To ensure the smooth and safe gas transmission pipeline, pipe used also put forward some high requirements. In order to remove the rust and steel surface oxide skin and improving the adhesion and coating on the surface, often need for special antirust, derusting processing. For corrosion heavier solid metal paint, surface treatment, use monly, cannot achieve clear standard, to achieve a specific standards, often need to adopt the way into derusting, surface derusting, for good quality of the durability of the enormous influence after coating, can make the coating are more durable number four times after treatment, shot from the metal surface, although the micro is still uneven, but the appropriate to the coating is concave and convex, because it helps the flow and adornment, make the metal surface and coating has very good adhesion of the paint, particularly effective, need more shot blasting processing, metal surface strengthening function on metal surface derusting, coating quality of life around 50% influence, derusting, more use manual work, steel wire brush, sand paper burnish, etc, these methods not only the efficiency is low, the quality is poor, the labor intensity, and environmental pollution and harm to human health, used in place of blasting, often USES a open shot room or directly open shot blasting room not only establish high cost, structure still exists, plexity of open shot unavoidable disadvantages, severe environmental pollution and harm to human health. Currently most using metal pipe wall derusting chemical pickling method，not only the cost is high, quality derusting unstable, and pollution is serious, the production of operators, unfortunately bad health hazard. Also can form rust corrosion protective coating for surface roughness, thus affecting the coating quality, reduce the pipeline using surface sanding derusting process is believed to be the best alternative pickling derusting, especially used in metal sheet metal structure and appearance of coaring, rust, and good effect has been widely used. Cleaning is the most effective before coating surface cleaning method. Again good coating, it is impossible to firmly adhere to the surface, in dirty cleaning not clean before coating, coating failure caused by means of cost, the original coating, coating, all losses, costs, corrosion, except for repairing suffer loss, cease, still need to rejoin the manpower and material resources to painting. This method of pipe length and diameter are wider range of